If you know that there is a firewall in place that has not yet been configured to
allow RealPlayer traffic, RealPlayer can receive streamed media without compromising
the security of the firewall. Before implementing the steps in this section, be sure
to check with your firewall administrator regarding your organization's policies on
Internet access.

The Auto-Configure method automatically detects which transport methods are available
to your RealPlayer and selects the highest quality method. If you are not sure which
method to choose, click Auto Configure. Otherwise, ask your firewall administrator
which option you should choose. You will need to know the port numbers for the UDP
and TCP choices.

RealPlayer automatically selects the most efficient
transport for your network without any intervention. You should
only change this setting if you are experiencing problems receiving
RealAudio and RealVideo clips or you have been notified by your
network administrator that you should change this setting.

The UDP option offers better sound quality than TCP.
RealPlayer also offers the ability to limit those inside a firewall
to receive UDP on only one port, which makes router configuration
easier.

To configure RealPlayer G2 to receive UDP through
a single port:

In RealPlayer, click Preferences from
the View menu (Windows) or the Edit menu (Macintosh).

Click the Transport tab.

Click Use Specific UDP Port and type the
number of the UDP port where you want to receive the UDP streams.
Ask your network manager or firewall administrator which port
number to use.

RealPlayer automatically selects the most efficient
transport for your network without any intervention. You should
only change this setting if you are experiencing problems receiving
RealAudio and RealVideo clips or you have been notified by your
network administrator that you should change this setting.

To configure RealPlayer G2 to use only TCP to stream
audio:

In RealPlayer, click Preferences from
the Options menu.

Click the Transport tab.

Click Use specified transports.

Click Change Settings to access the Specify
Transports window where you can specify the modes with which you
can receive data. When you are finished with the Specify Transports
window, click the OK button.

RealPlayer automatically selects the most efficient
transport for your network without any intervention. You should
only change this setting if you are experiencing problems receiving
RealAudio and RealVideo clips or you have been notified by your
network administrator that you should change this setting.

The HTTP Only option allows almost all Players behind
a firewall to access RealAudio and RealVideo content. Quality
may not be as good as the other options, however.